Gas-producer.



E, A. VV. JEFFBRIES @L G. H. ISLEY.

@As PRODUCER.

APPLUJATION FILED AUG.23,1909 p'i; gfgjifgo Patented 0013. 6, 1914.

ooocoooooo o E. A. W. JEFPERI'ES 65 G. H. I'SLEY.

GAS PRODUQHhlv APPLICATION FILED AUG.23, 1909.

Patented 001;. 6, 1914.

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EBENEZER A. W. JEFFERIES AND GEORGE H. ISLEY, OE WORCESTER, MASSACHUSETTS,

ASSIGNORS T0 THE MORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS.

GAS-PRODUCER.

specification of Letters Patent.

Patented- Oct. 6, 1914.

Application filed August 23, 1909. Serial No. 514,146.

ducers, of which the following is a specifica-` tion, accompanied by drawings, forming a part of the same, in which- Figure 1 is a sideelevation of a gas producer embodying our invention, the lower portion being shown in sectional view. Fig. 2 is a plan view, the upper half being shown in section on the plane of the broken line 'X-X, Fig. 1, and .the lower half of Fig. 2

being shown in section on 'the plane of the .broken line Y-Y, Fig. 1. Fig. 3 is a transverse section of one ofthe rotating tubular arms shown on the plane of the broken line Z-Z, Fig. 2. Fig. 1 is a plan view of the bar 10 showing its journaled connection with the vertical pipe 25. Fig. 5 is a detached perspective view ofthe detachable plate for` supporting the water cooled pipe 51.

Similar reference characters refer to similar parts in the dierent figures.

Some of the objects of our present invention are to increase the eiiiciency and' simplify the construction of gas producers by maintaining a uniform combustion in the gas producingr chamber, preventing the cakingof the coal and providing improved means for controllingthe zone of-combus-` tion; and these objects, among others, we

' accomplish by the construction and arrange-A ment of parts as hereinafter described and pointed out in the annexed claims.

Referring to the accompanying drawings rotating the ash an by the toothed annular plate 14,. we preflgJ eating bar 21 with a second bell crank 17a, g Fig. 2, a duplicate of the bell crank 17, and carrying a duplicate pawl, not shown, which g engages the toothed plate 14 at a point diametrically opposite the point of engagement "of the pawl 15, so that an equal pushing force will be applied simultaneously to diametrically opposite sides of the plate 14.

1 denotes a casing, preferably cylindrical in shape and supported in a stationary position upon columns 2, 21. The casing 1 consists of an outer metal shell`3, the upper .portion of which is brick lined at 1 and incloses a gas producing chamber 5.

The lower portion of the casing and the lbrick lining may be omitted, thereby bringing the metal shell 3 in direct contact with the contents of the casing. In order to reduce the temperature of the lower portion ofthe metal casing which is exposed to the direct action of heat, we surround portion of the exposed casing by a body of water 5a contained in an annular trough or water chamber -6. The cooling of the casing by the body of water 5a not only protects it from the injurious effects of excessiveheating, but it also prevents the Vaccumulation of clinkers` upon the inside of the casing and facilitates '60 the downward movement of ashes into'an ash pan 7. The brick lining 4 of'the upper portion of the casing is supported upon an internal shoulder 8 and isv preferably gradually contracted in diameter at 9 in order-t0 afford a partial support for the upper portion of the fuel 10. Spaced below the lower end 11 of the casing is the rotating ash pan or support 7 of greater diameter than the lower end 11 of the casing and provided with flaring sides 8a which extend upwardly above the lower end. 11 of the casing.- The ash pan 7 is supported upon conical rolls 12vjournaled in bearingsl 13 and is provided'with an internal toothed plate 111 which isl engaged by a pawl 15, pivoted at 16 upon a swinging bell crank 17, which is pivoted upon a stud 1S supported in the fixed framework 19. rPhe swinging bell crank 17 is pivotally connected at 20 with a sliding bar 21 to which a reciprocating movement in ways 22 is im- 1 parted by means of an eccentric, not shown,

or other suitable source of power. The pawl 15 is held in engagement with the teeth of the toothed plate or ratchet 14 by means of a spring 23, but may be disengaged from the ratchet by means of a cable 24 which is, extended beyond the ratchet into a convenient position to be pulled bythe attendant.

In order to equalize the strain exerted in rably connect the recipro- Attached to and rotating with the ash pan is a pipe 25 for admitting a charge of air and. .gteain lo the interior ot s :gro-

dnecr. 'the u has a Water scat con-1 nection y pipo lo the is attached a denic cone-einrically nuthin Casin:r and provided 1 i O11 o with hollow i artily c ung;` aiins me? preileralili,7 i cgi-al f u i the hood do, cach ot said eo; sisting ot a Llehaped trough open at the top and closed by a cover 30 att' ehed to the'arnis 2f) hy incans et l Jolts Jl. l rovulcrl alentr one upper eno` et or hood e the lower por v o ne cover 30 i" edge et each itin with a :tlange 3:2 Ywhich overlaps the side et the arin and the oppositie edge is curved and overhang?, the other side ot tha ari'n which is shortened to provide slit opening 33 for the escape oit air and steam. The oi'erhanging edge oit the cover is donfnnra'rtlljjv cnri'ed to prevent the achnission ot coal or ashes to the interior ot the arin 29. hood Q8 has an opening at the top provi l l i'itli a cover Sti which is supported in a slightly raised position to torni an annular slit 37 through which air and steain may escaoe Attached to the lower end it oi the casin is a bracket t to Which is attached a p 8f) forming lined support tor the outer enc ot a har f tG, thezinner end or which partiallj7 incloscs the pipe 25 between the bottoni oil the ash pan or support l and the exterior flange Lll on the pipe 25, which tornis a journal hearingv tor the inner end ot the loar 470 and around `which the har is tree to turn when the outer end ot the har released` The lower end ot 'the easing is clamped hctfween the bracket and plate 39 by ineans of a clamping screw t2 heid in the hraclet 38 and hearingn against 'the'casing in order to drin the plate 39 iirniljy against the inner side of the tasing. The screw 4t2 is provided 'with a lever handle i3 which enables the to he readili7 'tightened or loosened in order to attach or relese the outer end ot the har 40. The har l0 pret- .ufahlyv held in a s1ihstantiall)T tangential po sillon with reterence to the pipe E25, and an lacute angle with a radial line at the outer end ot the har. so that the ashes resting" upon the bottoni ot the ash pan7 when the latter is rotated in the direction ot the row dei, lie'. n'ill he ron'ded outward hy their contact with the sido of the har l0 and moved into the annular space hetu'eon the YVertical Wall oit the gras producer casing; and the tapering` outer rfi ll 8a ot the ash pan. Contiguous to the Youter wall ot the ash pan and suhstantiallf"v parallel therewith a hlade il?) attached to a, hloclc lil capahle ot sliding in irai/s fl-' and :nijusted hy an ad justine' screw fl?? suii'eled in 1ille block ftt and engaging a Ylined nut 50. il. crank handle 50 is provided to rotate the adjusting' screuiS-and enahle the blade to to he raised or louered in a line parallel with the tape side il@ of the ash pan. ,t

ingI the hlade t5 the del e A over the edge oi the ash pan in increased or enninished at wilh enabling the. ,Zone ot Lgieatest ,ieat to he maintained in a horizontal plane substantially coincident with the contracted lower ing;` 4l.

flhe products ot coinhustioin asln cl inliers, etc., falling; below the :gone ot greatheat -will ho supported upon the hottoin et the ash pan and will inelose the arn'is 2.() so as he rotated hy the rotation ot' the arnis and ash pan. rlhe incandcsceit and partially incandescent inass ot i'iuel lO lying ahorre the zone ot greatest heat will he partiallT held .troni rotation hy the contact et its edges with thel brick lining- 4l, and hy the support rendered oy the .contracted lining Si. The compelled rotation ot the lower part otz the niass of iiuel hy the increment ot the ash pan 7 and arins f2.9, and restraint upon rotation ot the upper part ot the mass tends to produce a plane ot cleavaee which prevents the calting ot the coal; t the restraint afforded oy the lining Wall ot the producer chamber is not suihcient With certain varieties oit coal' which have a great tcndency to coalcsce under the action ot extreme heat, one or more vater cooled pipes Si niay he extended through the mass ot :fuel and supi'iorted hy the casing of the producer. The water cooled pipe 5l is supported near its ends oy plates 52, 52, which are detachl l iL Il i I i aoiy attached to a nanged collar 53 inserted in the Wall ot the casino. rThe plates 52, are duplicates, one hein@- shown in detached. perspective View in 57 and they' are provided with openings 54, one above the other7 to allow the vertical position ot the Water cooled pipe to he Avaried according as the character ot' the coal, or the height ot the mass of 'coal naaf,7 determine. 'The openings tilt which are not occngied 'by lthe pi pe 5l are closed hy plugs 55.

The arras 29 are preferably slightly curved at their extremities in the direction ot their nioif'enient as shown at 29 so as to hotter engage the contents ot the produce and compel their rotation. Each ot the arms Q9 tornis a substantially closed trough which is `lille-d with a charge et air and steam supplied through the pipe Q5 and hood Q8. and which .is discharged into the gras producing" chaniher through the slit in a thin sheet which heconies distributed throughout the entire cross section ot the producingI cha inher. f

ln toe operation ot our improved grasiproducen coal is ted in the usual inanner at the top ot the casing, a hlast ot air and steam is su `)plied through 'the Vertical pipe and admitted through the slit or opening;r 37 the openings in the radial arins Q9 the producing chainher to support end 9 oit the hricl; linanimee combustion. As the combustion proceeds the solid products descend into the ash pan 7 where they are crowded outwardly'beneath the lower edge of the casing and against the flaring wall of the ash pan, The downward movementof the ashes and solid products of combustion, relatively to the feeding of coal at the top determines the height of fuel in the chamber and the vertical position of the zone of maximum heat. rIhis zene is preferably maintained approximately in the horizontal plane of the lower end of the upper section of the casing or at the lowerv end of the brick lining. During the combustion of furl the contents of the casing below the zone of maximum heat are caused to rotate by the movement of the wall of the lower section of the casing.

arms 29 and the ash pan 7 while the uppermost portion of the fuel inclosed within thev brick lining is impeded by its frictiorial contact with the interior brick wall of the casing, aided, when found necessary, by a contraction of its diametervand also by the insertion of-a water cooled pipel. v 7

The vrotation of the lower portion of the y contents of the chamber and also their downward movement into the ash pan is facilitated by the vertical metallic water cooled The removal of ashes from the pan 7 is controlled by the vertical adjustment ofthe ash removing blade 45. Lowering the blade 45 into the ash pan will cause the ashes Vto be removed faster and a consequent lowering of the zone of maximum heat. The removal 4of ashes is further controlled by attaching the purpose of breaking up the accumulation of clinkers, and we do not claim suoli means. The agitation of incandescent fuel tends to reduce its heat just as stirring ignited coal deadens the fire. We prevent the formation of clinkers by means of arms lying in substantially the same horizontal plane and presentina` vertical walls to the fuel by which the vmass of fuel in the plane of the arms is pushed bodily around the fuel chamber. Thefuel above the plane of the arms is restrained from rotative movement causing' a. cleavagebetween two horizontall strata of fuel. This process prevents the violent agitation of the fuel which would tend to deaden the Aire. In order to counteract any reductionv of heat which might otherwise occur, Jets of air are admitted through openings,y in'fthe arms and upon their rear sides, thereby increasing the conibustion in this plane. vWe claim,

l. In a gas producer, a shell or.casing inclosing a fuel chamber,-rotatablelarms extending from'the center of the fuel. chamber in Va horizontal plane above the bottom of the fuel chamber, means for rotating said arms in a horizontal plaine, and mea-ns extending into the fuel chamber iii a lio-rizo'ital plane for restraining the ,rotationof the fuel and spacedabove said horizontal arms, whereby a horizontal st-ratum of Afuel iiiclosed between said restraining means and said horizontally rotating arms is subjected to a cleaving or shearing action -toprevent caking.

2. In a gas producer, a shell or casing inclosing a fuel chamber, an ash support spaced .below said casing, a. series of hollow.

rotatable arms. extending from the `center of said fuel chamber in 'a horizontal plane and spaced from the bottom of said ash support, means for rotating said arms about an axis corresponding with the .axis of the fuel chamber', and means for supplying air to the -fuel through said hollow arms.

3. In a gas producer, a casing iiiclosmg a fuel chamber, an ash support spaced below said casing, a rotatable pipe extending upwardly from said ash support into said fuel chamber and concentric therewith, a series of hollow arms supported by said pipe in a horizontal planewithin said fuclchamber and presenting a vertical wall to the mass of fuel, and means for rotating said pipe.

4. In a gas producer, acasing provided at its lower portion witn vertical metalwalls open at the bottom, an ash support spaced below the lower end of said casing, horizontal arms contained within the lower portion of 'said casing, means for rotating said arms about a vertical axis, and means for restraining rotation of fuel Vlying above said arms.

5. In a gas producer, a fuel chamber, a

pipe extending upwardly into said chamber, hollow arms carried by said pipe and communicating therewith, said arms having at their upper 'edges openings for the admission of air into vsaid chamber, means for rotating -said pipe, and means for supplying air to said pipe.

6. In a gas producer, a stationary fuel chamber, azseries of rotatable hollow arms `supported in a horizontal plane within said chamber and having openings along their upper edges for the admis-:ion of air to said chamber, means for rotating said arms, and means-for supplying air to said arms.

7. In a gas producer, a stationary fuel chamber, arms supported in a h-irizontal plane in said chamber, means for rotating said arms,said arms having their free ends hooked in the direction of their rotative iso increment, and means for restraining' rotation ol 'luel lying` above said arms.

l5, in a gas producer, a fuel chaniber, an ash support spaced below said ehaniber, a

olI arnis supported in the saine horizontal plane within said chamber and pre* seating vertical sides to the luel, in rens Afor impartingv a rotary motion to said arins about a Vertical axis, and nieans for restraining the rotative inoreinent ol the fuel above said arnis.

l). ln a gas producer, a Afuel chamber, a series ot arias supported in the saine hori- Y,Lontal plane within said chalnber, ineans for rotating-said arlns about a Vertical axis, said arias presenting an advancing vertical wall to the tuel, and ineans for admitting;V air to said chaniber in a horizontal plane corre-v sponding with the plane of said arms,

1U. .ln a producer, a li'uel chamber, a series of arnis contained in said chainber in a horizontal plane, i'neans for rotating said aiins about a vertical axis, said arins presenting a vertical wall to the fuel, and nieans lor supplying` air to said chamber in the horizontal plane oli' the arlns and upon the rear sides thereof.

ll.. li gas producer having` a stationary easing` inrlosiug a gas producing;r chamber, a rotating ash support spaced below said eas iup', a pipe attached to said ash support and extending upwardly into said chamber, said pipe haring an openings)` at its top `lor the admission ol" air to said chamber, hollow arnls extending radially outward iroai the top of said pipe and inclosed entirely within said chamber, said arnis also having openiz'uefs 'troni their upper sides for the escape of air, Ineans for supplying air to said pipe, and means for rotating;T said ash support.

ln a producer, a rotating ash support., an annular plate attached to the bottoni oit said ash support with internal teeth,

pair ot' actuating pawls engaging said toothed plate on diainetrieally opposite sides, and means for simultaneously moving said )awls 'to rotate said toothed plate.

in a gas producer, lfuel chamber, a rotatable ash support spaced below said chamber, n'ieans 'l'or rotating' the ash support, a pipe suppo e by said ash support and extending iuywardly into said chamber, a ha resting on el e bottoni of the ash support haring its inner end journaled on said pipe, and ineans i'or holdingthe outer end oit' said bar stationary, whereby Vthe ashes may be ejected at a single point at one side ot' the producen ld'. ln a gas producer, a stationary easing inelosinsaY a fuel chamber, a rotatable ash support spaced below said chamber, ineans ilfor rotatin the ash support, a bar abo ve. the bottoni of said ash support at an oblique angle to the radius of the support, and lneans lor detachably attzuhingl the outer end of said bar to said casing', whereby the ashes inay be ejected at a single point at one side oit the prodru'er. v

l5. A gas producer having a stationary casing, rotatingl ineans for imparting a positire rotary inovenuuit to the contents ol the lower portion ot' said casing, a statioiiar)Tv water cooled pipe extending` through the eontents o'l said casing above. said rotating; means-t, said pipe detaehably attached to the w: lls of said casing`r and means in said casintr for attaehii A said pipe thereto 1n dill'erent Vertical positions.

Dated this twenty-firstdayof 1.905).

I EBENE LER A. TV. dlll? ll1 lCltllEl-l.

GEORGE llt. lfllilllh lllitnesses lDeNnLorn Gonnicnon, llt' inane All/UAL'EN.

.august 

